Follow Techotopia on Twitter

On-line Guides
All Guides
eBook Store
iOS / Android
Linux for Beginners
Office Productivity
Linux Installation
Linux Security
Linux Utilities
Linux Virtualization
Linux Kernel
System/Network Admin
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Mail Systems
Eclipse Documentation

How To Guides
General System Admin
Linux Security
Linux Filesystems
Web Servers
Graphics & Desktop
PC Hardware
Problem Solutions
Privacy Policy




Rollover Images


You may also want to check out how to create a rollover submit image for a form
"Rollover images" are images that change when the mouse is over them. Rollover Images (or "rollovers" as we'll call them) are popular because they give the image a live feeling... they indicate that something will happen when you click on it. For example, this rollover, which is inside a link, changes from a gray-scale picture to a color picture when the mouse is over it:

Rollovers are really two images: the image when the mouse is over, and another when it's not. Javascript swaps between them when the mouse moves over (onMouseOver) and when it leaves being over (onMouseOut). Our example uses these two images:

Image when the mouse is not over Image when the mouse IS over
Image When The Mouse Is Not Over
Image When The Mouse Is Over
First, copy the following JavaScript into your page. Copy it exactly as-as without making any changes.

<SCRIPT TYPE="text/javascript">
// copyright 1999 Idocs, Inc.
// Distribute this script freely, but please keep this 
// notice with the code.

var rollOverArr=new Array();
function setrollover(OverImgSrc,pageImageName)
if (! document.images)return;
if (pageImageName == null)
    pageImageName = document.images[document.images.length-1].name;
rollOverArr[pageImageName]=new Object;
rollOverArr[pageImageName].overImg = new Image;

function rollover(pageImageName)
if (! document.images)return;
if (! rollOverArr[pageImageName])return;
if (! rollOverArr[pageImageName].outImg)
    rollOverArr[pageImageName].outImg = new Image;
    rollOverArr[pageImageName].outImg.src = document.images[pageImageName].src;

function rollout(pageImageName)
if (! document.images)return;
if (! rollOverArr[pageImageName])return;

This script does most of the work for you. In the next page we'll create the code that implements the scripts for a single rollover image.

  Copyright 1997-2002 Idocs inc. Published under the terms of the Open Content License Design by Interspire